The numbers 1409 to 1415 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1409 | = | MCDIX | = | 1000 + 500 − 100 + 10 − 1 |
| 1410 | = | MCDX | = | 1000 + 500 − 100 + 10 |
| 1411 | = | MCDXI | = | 1000 + 500 − 100 + 10 + 1 |
| 1412 | = | MCDXII | = | 1000 + 500 − 100 + 10 + 1 + 1 |
| 1413 | = | MCDXIII | = | 1000 + 500 − 100 + 10 + 1 + 1 + 1 |
| 1414 | = | MCDXIV | = | 1000 + 500 − 100 + 10 + 5 − 1 |
| 1415 | = | MCDXV | = | 1000 + 500 − 100 + 10 + 5 |